78434058 has 8 divisors (see below), whose sum is σ = 156868128. Its totient is φ = 26144684.

The previous prime is 78434029. The next prime is 78434089. The reversal of 78434058 is 85043487.

It is a sphenic number, since it is the product of 3 distinct primes.

78434058 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6536166 + ... + 6536177.

It is an arithmetic number, because the mean of its divisors is an integer number (19608516).

Almost surely, 2^78434058 is an apocalyptic number.

78434058 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78434058 is a wasteful number, since it uses less digits than its factorization.

78434058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13072348.

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 78434058 is about 8856.3004691575. The cubic root of 78434058 is about 428.0569588212.

The spelling of 78434058 in words is "seventy-eight million, four hundred thirty-four thousand, fifty-eight".